#include <acts/blob/sPHENIX/Core/include/Acts/Digitization/Segmentation.hpp>

Inheritance diagram for Acts::Segmentation:

Public Member Functions
virtual	~Segmentation ()=default
	Virtual Destructor.

virtual void	createSegmentationSurfaces (SurfacePtrVector &boundarySurfaces, SurfacePtrVector &segmentationSurfacesX, SurfacePtrVector &segmentationSurfacesY, double halfThickness, int readoutDirection, double lorentzAngle) const =0

virtual DigitizationCell	cell (const Vector3 &position) const =0

virtual DigitizationCell	cell (const Vector2 &position) const =0

virtual Vector2	cellPosition (const DigitizationCell &dCell) const =0

virtual DigitizationStep	digitizationStep (const Vector3 &start, const Vector3 &end, double halfThickness, int readoutDirection, double lorentzAngle) const =0

virtual const SurfaceBounds &	moduleBounds () const =0
	return the surface bounds by reference

virtual const BinUtility &	binUtility () const =0
	return the bin utility that defines the readout

Detailed Description

Segmentation Base class.

This helper class allows to define an arbitrary readout segmentation for the geoemtric digitization, provided a shape of the module, it creates the segmentation surfaces and hands them to the digitization module

Since the segmentation description might be identical for many elements while the lorentz angle may change, lorentzAngle and readoutDirection are provided and th the segmenation class only creates the surfaces for the module, but hosts the binning information.

Definition at line 37 of file Segmentation.hpp.

View newest version in sPHENIX GitHub at line 37 of file Segmentation.hpp

Constructor & Destructor Documentation

virtual Acts::Segmentation::~Segmentation ( )

virtualdefault

Virtual Destructor.

Member Function Documentation

virtual const BinUtility& Acts::Segmentation::binUtility ( ) const

pure virtual

return the bin utility that defines the readout

Implemented in Acts::CartesianSegmentation.

Referenced by ActsExamples::PlanarSteppingAlgorithm::execute().

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virtual DigitizationCell Acts::Segmentation::cell ( const Vector3 & position ) const

pure virtual

Get the digitization cell from a 3D position

ignores the shift, i.e. assumenes in to be in cell frame

Parameters

position is the position for which the cell is requested

Returns: is a cell with cell ids

Implemented in Acts::CartesianSegmentation.

virtual DigitizationCell Acts::Segmentation::cell ( const Vector2 & position ) const

pure virtual

Get the digitization cell from a 2D position

ignores the shift, i.e. assumenes in to be in cell frame

Parameters

position is the position for which the cell is requested

Returns: is a cell with cell ids

Implemented in Acts::CartesianSegmentation.

virtual Vector2 Acts::Segmentation::cellPosition ( const DigitizationCell & dCell ) const

pure virtual

Calculate the cell Position from the Id

Parameters

dCell the digitization cell

Returns: the center position of the associated cell

Implemented in Acts::CartesianSegmentation.

Referenced by ActsExamples::RootPlanarClusterWriter::writeT().

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virtual void Acts::Segmentation::createSegmentationSurfaces	(	SurfacePtrVector &	boundarySurfaces,
		SurfacePtrVector &	segmentationSurfacesX,
		SurfacePtrVector &	segmentationSurfacesY,
		double	halfThickness,
		int	readoutDirection,
		double	lorentzAngle
	)		const

pure virtual

Create the segmentation surfaces in X

This method is only used if the full 3D digitization is done

Parameters

boundarySurfaces	vector to be filled
segmentationSurfacesX	are the segmetation boundaries in X
segmentationSurfacesY	are the segmetation boundaries in Y
halfThickness	is the half thickness in z of the module
readoutDirection	is the direction w.r.t normal vector where the readout is given : -1, 0, 1 possible
lorentzAngle	is the lorentz angle measured from the local z towards x axis

Implemented in Acts::CartesianSegmentation.

virtual DigitizationStep Acts::Segmentation::digitizationStep	(	const Vector3 &	start,
		const Vector3 &	end,
		double	halfThickness,
		int	readoutDirection,
		double	lorentzAngle
	)		const

pure virtual

Fill the associated digitization cell from the start and end position in 3D correct for lorentz effect if needed

Parameters

start	is the start position of the step
end	is the end position of the step
halfThickness	is the half thickness in z
readoutDirection	is the readout direction with respect to local z
lorentzAngle	is the lorentz angle measured from local z towards x

Returns: is a fully calculated digitzation step

Implemented in Acts::CartesianSegmentation.

virtual const SurfaceBounds& Acts::Segmentation::moduleBounds ( ) const

pure virtual

return the surface bounds by reference

Implemented in Acts::CartesianSegmentation.

The documentation for this class was generated from the following file:

acts/blob/sPHENIX/Core/include/Acts/Digitization/Segmentation.hpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation